[Hapi.js] Extending the request with lifecycle events

const Hapi = require( ‘hapi‘ )
const Boom = require( ‘boom‘ )
const server = new Hapi.Server()
server.connection( { port: 8000 } )

server.ext( ‘onRequest‘, ( request, reply ) => {
    request.setUrl( ‘/‘ )
    request.setMethod( ‘GET‘ )
    // need to call continue, the same as Express‘s next()
    reply.continue()
} )

/**
 * After the request has gone through the router, it needs to be authenticated. OnPreAuth runs before authentication, and onPostAuth runs after.
 */
server.ext( ‘onRequest‘, ( request, reply ) => {
    console.log( ‘onRequest‘ )
    reply.continue()
} )

/**
 * After the request has gone through the router, it needs to be authenticated. OnPreAuth runs before authentication, and onPostAuth runs after.
 */
server.ext( ‘onPreAuth‘, ( request, reply ) => {
    console.log( ‘onPreAuth‘ )
    reply.continue()
} )

server.ext( ‘onPostAuth‘, ( request, reply ) => {
    console.log( ‘onPostAuth‘ )
    reply.continue()
} )

/**
 * Validation is handled next. OnPreHandler runs, then, the route itself.
 */
server.ext( ‘onPreHandler‘, ( request, reply ) => {
    console.log( ‘onPreHandler‘ )
    reply.continue()
} )

/**
 * OnPostHandler runs after the handler.
 */
server.ext( ‘onPostHandler‘, ( request, reply ) => {
    console.log( ‘onPostHandler‘ )
    reply.continue()
} )

/**
 * Then, the response payload is validated on pre-response runs, and the response is sent to the client.
 */
server.ext( ‘onPreResponse‘, ( request, reply ) => {
    console.log( ‘onPreResponse‘ )
    reply.continue()
} )

server.route( {
    method: ‘GET‘,
    path: ‘/‘,
    handler: function ( request, reply ) {
        console.log( ‘handler‘ )
        reply( ‘hello world‘ )
    }
} )

server.start( () => {
} )